<template>
  <!-- 底部部分 -->
  <footer class="footer">
    <span class="todo-count"><strong>{{ sum }}</strong>剩余</span>
    <ul class="filters">
      <li>
        <a
          :class="{ selected: listType === 'all' }"
          @click="changeType('all')"
          href="#/">全部</a>
      </li>
      <li>
        <a
          :class="{ selected: listType === 'active' }"
          @click="changeType('active')"
          href="#/active">进行中</a>
      </li>
      <li>
        <a
          :class="{ selected: listType === 'completed' }"
          @click="changeType('completed')"
          href="#/completed">已完成</a>
      </li>
    </ul>
    <button class="clear-completed" v-if="cleaBtn" @click="delAll">清除已完成</button>
  </footer>
</template>
 
<script>
export default {
  props: {
    sum: {
      type: Number,
      required: true
    },
    cleaBtn: {
      type: Boolean,
      required: true
    },
    listType: {
      type: String,
      required: true
    },
  },
  methods: {
    delAll() {
      this.$emit('delAll')
    },
    changeType(value) {
      this.$emit('changeType', value)
    },
  },
}
</script>
<style scoped>
</style>